LPSTK-CC1352R: Accelerometer not working in new part

Kishore Gangwani

Part Number: LPSTK-CC1352R
Other Parts Discussed in Thread: CC1352R

I bought LPSTK-CC1352R However, Accelerometer sensor on the delivered product is not working.

I am connecting to LPSTK-CC1352R using TI Sensor Tag Android app using BLE. All sensors provide correct readings, except the Accelerometer. Accelerometer values are sometimes not even shown in the app. When readings are shown, they are unexpected values and often get frozen (dont change even if I move the device).

Please advise.

Regards

Kishore

over 3 years ago

0 YiKai Chen over 3 years ago

Guru 735475 points

Try to use TI SimpleLink Starter App instead of TI Sensor Tag Android app.

0 Kishore Gangwani over 3 years ago in reply to YiKai Chen

Prodigy 10 points

Tried SimpleLink also. DId not work with this app either.

Thanks for the response though.

0 Siri over 3 years ago in reply to Kishore Gangwani

TI__Guru* 81931 points

What SDK version are you using? There has been a known issue with the accelerometer that was fixed in SDK4.20:

https://dev.ti.com/tirex/content/simplelink_cc13x2_26x2_sdk_4_20_00_35/changelog.html#fixed-issues

(DMM-886)

Also see the following post:

https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz/f/goosub-1-ghz-forum/882026/ccs-lpstk-cc1352r-not-able-to-obtain-accelerometer-data-from-lpstk-cc1352r-to-launchxl-cc1352r1

Siri

0 Kishore Gangwani over 3 years ago in reply to Siri

Prodigy 10 points

I am using SDK v5.7.5 (Build 86). Still facing the issue

0 YiKai Chen over 3 years ago in reply to Kishore Gangwani

Guru 735475 points

Current latest CC13x2/CC26x2 SDK is Version: 5.10.00.48. What do you mean SDK v5.7.5 (Build 86) and where do you download it?

0 Kishore Gangwani over 3 years ago in reply to YiKai Chen

Prodigy 10 points

YiKai Chen said:
CC26x2

I am referring to Simple Link app v5.7.5 as suggested by you above on Google Play store.

play.google.com/.../details

Following steps for "Your LaunchPad's Out of Box Experience demo"

dev.ti.com/.../lpstk_oobe.html

0 Siri over 3 years ago in reply to Kishore Gangwani

TI__Guru* 81931 points

Have you updated the code on the LP with the code from the latest SDK (5.10)?

As I wrote in the first post, there has been a bug on the LPSTK regarding the Acc. I am not sure with SDK is used for the code that comes with the LPSTK, so please update with the latest code from the simplelink_cc13x2_26x2_sdk_5_10_00_48 SDK.

Siri

0 YiKai Chen over 3 years ago in reply to Kishore Gangwani

Guru 735475 points

I can confirm multi_sensor example in SDK 5.10 can see accelerator data without problem on my iPhone 7 plus.

0 Kishore Gangwani over 3 years ago in reply to YiKai Chen

Prodigy 10 points

Yes, works for me also for other piece I have. Therefore I suspect the problem is with this one device.

0 YiKai Chen over 3 years ago in reply to Kishore Gangwani

Guru 735475 points

Do you mean that you have two LPSTK-CC1352R, one works and another doesn’t with the same software? If so, I would say this might be hardware broken.

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LPSTK-CC1352R: Accelerometer not working in new part